A novel hole cold-expansion method and its effect on surface integrity of nickel-based superalloy
XianCao Ping, ZhangShuang Liu, Xue-Lin Lei*(
), Run-Zi Wang, Xian-Cheng Zhang*(), Shan-Tung Tu
), Run-Zi Wang, Xian-Cheng Zhang*(), Shan-Tung Tu
.
Fig. 5.. Microscopic metallographic structures of the (a) untreated material and strengthened materials with expansion degrees of (b) 0.4 %, (c) 0.7 %, and (d) 1%.
